gen4: outer joins #8312
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gen4: outer joins #8312
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Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
systay
added
Component: Query Serving
Type: Enhancement
Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
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…eryGraph Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Co-authored-by: Andres Taylor <andres@planetscale.com> Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Co-authored-by: Andres Taylor <andres@planetscale.com> Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
(NoDeps, removal of keyspace name) Co-authored-by: Andres Taylor <andres@planetscale.com> Signed-off-by: Florent Poinsard <florent.poinsard@outlook.fr>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
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harshit-gangal
approved these changes
Jun 23, 2021
GuptaManan100
approved these changes
Jun 23, 2021
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
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Description
Teaches gen4 how to plan outer joins.
The big change is that we had to introduce a new abstraction - the operator tree.
Before this PR, gen4 turned queries into query graphs for planning. That is not enough to handle outer joins well, so we introduced the operator tree, which can be or contain a querygraph to represent the query.
Related Issue(s)
#7280
Checklist